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Chapter 8  Working with User-Defined Functions </TITLE>
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<A NAME="CDECDFID"></A><h1>Chapter 8  Working with User-Defined Functions </h1>
<A NAME="TI2116"></A><h4>About this chapter</h4>
<A NAME="TI2117"></A><p>This chapter describes how to build and use user-defined functions.</p>
<A NAME="TI2118"></A><h4>Contents</h4>
<A NAME="TI2119"></A><table cellspacing=0 cellpadding=6 border=1 frame="void" rules="all"><tr><th  rowspan="1"  ><A NAME="TI2120"></A>Topic</th>
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<tr><td  rowspan="1"  ><A NAME="TI2121"></A><A HREF="pbugp75.htm#X-REF297023071">About user-defined
functions </A></td>
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<tr><td  rowspan="1"  ><A NAME="TI2122"></A><A HREF="pbugp76.htm#X-REF297023136">Defining user-defined
functions </A></td>
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<tr><td  rowspan="1"  ><A NAME="TI2123"></A><A HREF="pbugp77.htm#X-REF297023212">Modifying user-defined
functions </A></td>
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<tr><td  rowspan="1"  ><A NAME="TI2124"></A><A HREF="pbugp78.htm#X-REF297023231">Using your functions </A></td>
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